Method for Automating a Distribution Center

An example embodiment is a trailer for a semi-trailer truck that includes an electric, battery-powered drive train mounted on at least one axel of the trailer. A controller sends and receives signals from a global positioning system and from distribution center personnel. Signals are interpreted by a protocol in the controller to move a powered trailer from its current location to a destination. A trailer control algorithm monitors a plurality of variables and communicates to a controller in each trailer to control a plurality of trailers according to the variables.